:host{
  width: 240px;
  height: 26px;
  position: relative;
  display: inline-block;
  font-size: 0;
  cursor: pointer;
  .select-box{
    overflow: hidden;
    position: absolute;
    max-height: 135px;
    font-size: 12px;
    left: 0;
    bottom: calc(100% + 5px);
    border: 1px solid #ddd;
    border-radius: 2px;
    width: 100%;
    padding: 5px 0;
    background: #fff;
    .option-box{
      // margin-right: -17px;
      max-height: 125px;
      overflow-y: scroll;
    }
    .scroll-bar{
      position: absolute;
      right: 0;
      top: 5px;
      width: 5px;
      height: 50px;
      background: rgba(83, 83, 83, .45);
      border-radius: 5px;
    }
  }
  svg{
    fill: #ccc;
    width: 10px; 
    height: 5px;
    position: absolute;
    top: calc(50% - 2.5px);
    transition: transform 200ms ease-in-out;
    right: 10px;
  }
}